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Diffstat (limited to 'Build/source/libs/gd/libgd-src/tests/gdimagepixelate/gdimagepixelate.c')
-rw-r--r--Build/source/libs/gd/libgd-src/tests/gdimagepixelate/gdimagepixelate.c88
1 files changed, 88 insertions, 0 deletions
diff --git a/Build/source/libs/gd/libgd-src/tests/gdimagepixelate/gdimagepixelate.c b/Build/source/libs/gd/libgd-src/tests/gdimagepixelate/gdimagepixelate.c
new file mode 100644
index 00000000000..2a0a4692269
--- /dev/null
+++ b/Build/source/libs/gd/libgd-src/tests/gdimagepixelate/gdimagepixelate.c
@@ -0,0 +1,88 @@
+#include "gd.h"
+#include "gdtest.h"
+
+#define WIDTH 12
+#define BLOCK_SIZE 4
+
+static const int expected_upperleft[][3] = {
+ {0x000000, 0x040404, 0x080808},
+ {0x303030, 0x343434, 0x383838},
+ {0x606060, 0x646464, 0x686868}
+};
+
+static const int expected_average[][3] = {
+ {0x131313, 0x171717, 0x1b1b1b},
+ {0x434343, 0x474747, 0x4b4b4b},
+ {0x737373, 0x777777, 0x7b7b7b},
+};
+
+#define SETUP_PIXELS(im) do { \
+ int x, y, i = 0; \
+ for (y = 0; y < (im)->sy; y++) { \
+ for (x = 0; x < (im)->sx; x++) { \
+ int p = gdImageColorResolve(im, i, i, i); \
+ gdImageSetPixel(im, x, y, p); \
+ i++; \
+ } \
+ } \
+ } while (0)
+
+#define CHECK_PIXELS(im, expected) do { \
+ int x, y; \
+ for (y = 0; y < (im)->sy; y++) { \
+ for (x = 0; x < (im)->sx; x++) { \
+ int p = gdImageGetPixel(im, x, y); \
+ int r = ((expected)[y/BLOCK_SIZE][x/BLOCK_SIZE]>>16)&0xFF; \
+ int g = ((expected)[y/BLOCK_SIZE][x/BLOCK_SIZE]>> 8)&0xFF; \
+ int b = ((expected)[y/BLOCK_SIZE][x/BLOCK_SIZE] )&0xFF; \
+ if (r != gdImageRed(im, p)) { \
+ printf("Red %x is expected, but %x\n", r, gdImageRed(im, p)); \
+ return 0; \
+ } \
+ if (g != gdImageGreen(im, p)) { \
+ printf("Green %x is expected, but %x\n", g, gdImageGreen(im, p)); \
+ return 0; \
+ } \
+ if (b != gdImageBlue(im, p)) { \
+ printf("Blue %x is expected, but %x\n", b, gdImageBlue(im, p)); \
+ return 0; \
+ } \
+ } \
+ } \
+ } while (0)
+
+static int testPixelate(gdImagePtr im)
+{
+ if (gdImagePixelate(im, -1, GD_PIXELATE_UPPERLEFT) != 0) return 0;
+ if (gdImagePixelate(im, 1, GD_PIXELATE_UPPERLEFT) != 1) return 0;
+ if (gdImagePixelate(im, 2, -1) != 0) return 0;
+
+ SETUP_PIXELS(im);
+ if (!gdImagePixelate(im, BLOCK_SIZE, GD_PIXELATE_UPPERLEFT)) return 0;
+ CHECK_PIXELS(im, expected_upperleft);
+
+ SETUP_PIXELS(im);
+ if (!gdImagePixelate(im, BLOCK_SIZE, GD_PIXELATE_AVERAGE)) return 0;
+ CHECK_PIXELS(im, expected_average);
+
+ return 1;
+}
+
+int main()
+{
+ gdImagePtr im;
+
+ im = gdImageCreate(WIDTH, WIDTH);
+ if (!testPixelate(im)) {
+ return 1;
+ }
+ gdImageDestroy(im);
+
+ im = gdImageCreateTrueColor(WIDTH, WIDTH);
+ if (!testPixelate(im)) {
+ return 2;
+ }
+ gdImageDestroy(im);
+
+ return 0;
+}